Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Para companhias aéreas denominadas Grupo Aeroflot, qual é a aliança?
 ###Tabelas: CREATE TABLE 2013-2014_roster (2013-2014_roster_id AUTO_INCREMENT PRIMARY KEY, Number VARCHAR, Player VARCHAR, Position VARCHAR, Height VARCHAR, Weight VARCHAR, Home Town VARCHAR) CREATE TABLE 4a_members (4a_members_id AUTO_INCREMENT PRIMARY KEY, High School VARCHAR, Location VARCHAR, Founded INT, Affiliation VARCHAR, Enrollment INT, Nickname VARCHAR, Division VARCHAR) CREATE TABLE league_statistics (league_statistics_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Overall Spectators INT, Per game INT, Best supported Club VARCHAR, Spectators /game INT, Top goal scorer VARCHAR, Goals INT) CREATE TABLE by_scheduled_passengers_carried_millions (by_scheduled_passengers_carried_millions_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Airline/Holding VARCHAR, Passenger Fleet INT, Current Destinations INT, Alliance/ Association VARCHAR) CREATE TABLE lpga_tour_career_summary (lpga_tour_career_summary_id AUTO_INCREMENT PRIMARY KEY, Year INT, Tournaments played INT, Cuts made INT, Wins INT, 2nd INT, 3rd INT, Top 10s INT, Best finish VARCHAR, Earnings ( $ ) INT, Money list rank VARCHAR, Scoring average VARCHAR, Scoring rank VARCHAR)  
SELECT Alliance/ Association FROM by_scheduled_passengers_carried_millions WHERE Airline/Holding = aeroflot group